/**
* Provides the data to display/edit for a given index and role.
* @param index The index for which data is requested
* @param role The requested role
* @return The relevant data
*/
QVariant LexerStyleModel::data(const QModelIndex& index, int role) const
{
const Node* node = nodeFromIndex(index);
if (node == NULL || node->data() == NULL)
return 0;
if (node->data()->type() == StyleNode) {
// Get the lexer and style ID for this node.
StyleData* data = static_cast<StyleData*>(node->data());
QsciLexer* lexer = data->lexer_;
int style = data->style_;
switch (index.column()) {
case 0:
// Show language name or style name in the first column.
if (role == Qt::DisplayRole) {
if (style == lexer->defaultStyle())
return lexer->language();
return lexer->description(style);
}
break;
case 1:
// Show a formatted text string in the second column, using the
// style's properties.
return styleData(node, role);
}
}
else {
// Get the lexer and style ID for this node.
PropertyData* data = static_cast<PropertyData*>(node->data());
switch (index.column()) {
case 0:
if (role == Qt::DisplayRole)
return propertyName(data->prop_);
break;
case 1:
return propertyData(data, role);
}
}
return QVariant();
}
